diff --git a/autogen.sh b/autogen.sh
index c0459404..06c2f96c 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -36,7 +36,7 @@ echo "Running autoconf"
 autoconf
 
 # fixup Makefiles for Irix
-if test "$OS" = "IRIX" -o "$OS" = "IRIX64"; then
+if test "$OSTYPE" = "IRIX" -o "$OSTYPE" = "IRIX64"; then
     echo "Fixing Makefiles for Irix"
     for n in `find . -name Makefile.in`; do \
         mv -f $n $n.ar-new; \
diff --git a/configure.in b/configure.in
index d2d7adc0..5c8f4a20 100644
--- a/configure.in
+++ b/configure.in
@@ -55,7 +55,7 @@ else
     echo "includedir changed to" $includedir "libdir is" $libdir
 fi
          
-# Determine version of automake ... important becuase of
+# Determine version of automake ... important because of
 # incompatibilities between versions
 AUTO_MAKE_VERSION=`automake --version | head -1 | awk '{print $4}' | sed -e 's/\-p[[0-9]]$//' | sed -e 's/\.//'`
 AM_CONDITIONAL(ANCIENT_AUTOMAKE, test $AUTO_MAKE_VERSION -lt 14)